. > > The non rechargeable Lithium COIN battery has a discharge function that holds its voltage fairly constant right up until the > end. They will last a very long time with just 5 micro amps of discharge. >

As far as I know none have a voltage-controlled oscillator but that would certainly be interesting :-) The RTC's current purpose is to keep time while the system is off, as it can run for many years from a lithium coin cell, and to wake the system at a scheduled time if desired.

It is interesting that either folks look at phase noise or ADEV, but few seems to be looking at both sides of the coin, depending on what they are doing. Cheers, Magnus

Best of luck Paul WB8TSL On Sun, Mar 15, 2015 at 6:27 AM, Hal Murray wrote: > > attila@kinali.ch said: > > A CR2032 is a quite huge coin cell. An NVRAM module does not use much > power > > once Vcc goes to zero. In todays low power modules it's in the order of > > 100nA max specified.

As it turns out, even gold coin has two sides to it. >> I have found that Shlepnev and McMorrow conducted extensive research and published data, some of which is presented here http://www.simberian.com/Presentations/NickelCharacterizationPresentation_emc2011.pdf > > the ever useful http://www.microwaves101.com/ site has an excellent discussion of this under

>Both of these have 3 battery packs made of some form of coin cell, NiCd, >225ma, 5 to a stack. These are what I'm familiar with (I presume you mean 4 packs, not 3?). The batteries are Y-5201, long obsolete. >The newest 419 is different. Different battery holder, and uses 4 packs >of 5 1/3AA cells.

Those of us who mess about with navigation see time and space as opposite sides of the same coin. -- *Brian Lloyd * WB5BL - J79BL - NNA6BL 706 Flightline Spring Branch, TX 78070 brian@heaviside-hf.com +1.210.620.0011

I think I also generated the coin in openscad too, > but not found it yet. > > On 16/02/2025 01:11, Sanjeev Prabhakar wrote: >> Can you share the output image. >> I am thinking of giving a try to cadquery. >> Long back i tried,  but it was not very user friendly.

I'd probably flip a coin, put it with either strings or lists, and put a cross-reference from the other. There should be a master list, probably alphabetical, somewhere, but that should only be an index.

Numbers peaked around September 2-4 at 2465 swifts in 10 chimneys. A second, but smaller peak (1238) was noted on the midweek count of Sep 20-21 when only the four largest roosts were counted.